Linear-Fresnel

Linear Fresnel Collectors are in the stage of technological development and first demonstrations. The typical properties are a fix receiver at a height of 3-10 m above the ground, and 10-20 small mirrors stripes, accessible from the ground, canted onto the same absorber. The configuration allows for smaller distance between mirror rows, but leads to low power production in the morning and evening hours. Current pilot scale systems all use water/steam as heat transfer fluid, to directly feed into a steam turbine or absorption chiller. The cost per square-meter of collector aperture area is estimated to be significantly lower than for parabolic troughs, however the lower performance of this technology variant together with the lack of long-term operating experience is still an issue for the commercial implementation.